Question

A ball of mass 10 kg is attached by a lightweight cord that passes over a frictionless pulley of negligible mass to a block of mass 20 kg. The block lies on a frictionless incline of 10 degree. Find the magnitude of the acceleration of the two blocks and the tension in the cord.

Answer 1

Lets

$m_1g-T=m_1a$

$T-m_2gsin\theta=m_2a$

Adding both equations we get ,

$(m_1-m_2sin\theta)g=(m_1+m_2)a$

$\implies a=2.13m/s^2$

So, $a=$